CN109391971B - Method and equipment for configuring and monitoring search space of PDCCH (physical Downlink control channel) - Google Patents

Abstract

Translated fromChinese

本发明实施例公开了一种PDCCH的搜索空间的配置、监听方法及设备，涉及无线通信技术领域，可以达到对UE的PDCCH的搜索空间进行配置的目的，以及可以保证UE能够及时、有效的接收到多种类型的下行控制信息。具体方案为：向UE发送PDCCH配置信息，PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，搜索空间为以下类型中任意一种：公共搜索空间；群组公共搜索空间；专属搜索空间。本发明实施例用于配置PDCCH的搜索空间以及监听PDCCH的搜索空间的过程中。

The embodiment of the present invention discloses a PDCCH search space configuration, monitoring method and device, which relate to the technical field of wireless communication, can achieve the purpose of configuring the PDCCH search space of the UE, and can ensure that the UE can receive timely and effectively to multiple types of downstream control information. The specific scheme is: sending PDCCH configuration information to the UE, the PDCCH configuration information is used to indicate at least one search space of the UE's PDCCH, and the search space is any one of the following types: common search space; group common search space; dedicated search space. The embodiments of the present invention are used in the process of configuring the search space of the PDCCH and monitoring the search space of the PDCCH.

Description

Translated fromChinese

一种PDCCH的搜索空间的配置、监听方法及设备A kind of PDCCH search space configuration, monitoring method and device

技术领域technical field

本发明实施例涉及无线通信技术领域，特别涉及一种PDCCH的搜索空间的配置、监听方法及设备。Embodiments of the present invention relate to the field of wireless communication technologies, and in particular, to a method and device for configuring and monitoring a search space of a PDCCH.

背景技术Background technique

面向5G，在新空口技术(New Radio Access Technology，NR)的标准讨论中，UE需要监听多种类型的下行控制信息(Downlink Control Information，DCI)。其中，UE可以通过盲检测的方式，在UE的搜索空间检测网络设备发送的物理下行控制信道(PhysicalDownlink Control Channel，PDCCH)获得DCI。For 5G, in the standard discussion of New Radio Access Technology (NR), the UE needs to monitor various types of downlink control information (Downlink Control Information, DCI). The UE may obtain the DCI by detecting a Physical Downlink Control Channel (PDCCH) sent by the network device in the search space of the UE by means of blind detection.

但是，现有技术中对于如何设置UE的搜索空间，并没有具体的方案，则会导致UE并不能够及时、有效的接收到多种类型的下行控制信息。However, in the prior art, there is no specific solution for how to set the search space of the UE, so that the UE cannot receive various types of downlink control information in a timely and effective manner.

发明内容SUMMARY OF THE INVENTION

本发明实施例提供一种PDCCH的搜索空间的配置、监听方法及设备，可以达到对UE的PDCCH的搜索空间进行配置的目的，以及可以保证UE能够及时、有效的接收到多种类型的下行控制信息。The embodiments of the present invention provide a PDCCH search space configuration, monitoring method and device, which can achieve the purpose of configuring the PDCCH search space of the UE, and can ensure that the UE can receive various types of downlink control timely and effectively. information.

为达到上述目的，本发明实施例采用如下技术方案：In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

本发明实施例的第一方面，提供一种PDCCH的搜索空间的配置方法，应用于网络设备，该PDCCH的搜索空间的配置方法包括：向UE发送PDCCH配置信息，该PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，该搜索空间为以下类型中任意一种：公共搜索空间、群组公共搜索空间、专属搜索空间。其中，网络设备使用每种搜索空间发送的DCI的类型不同。A first aspect of the embodiments of the present invention provides a method for configuring a search space of a PDCCH, which is applied to a network device. The method for configuring a search space for a PDCCH includes: sending PDCCH configuration information to a UE, where the PDCCH configuration information is used to indicate the UE At least one search space of the PDCCH, the search space is any one of the following types: common search space, group common search space, and exclusive search space. The types of DCI sent by the network device using each search space are different.

本发明实施例中，网络设备通过向UE发送PDCCH配置信息的方法，达到了对UE的PDCCH的搜索空间进行配置的目的。并且，由于网络设备向UE发送PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，因此可以使得UE在PDCCH配置信息的指示的UE的PDCCH的搜索空间进行PDCCH的检测，从而保证了UE能够及时、有效的接收到网络设备发送的DCI。In the embodiment of the present invention, the network device achieves the purpose of configuring the search space of the PDCCH of the UE by sending the PDCCH configuration information to the UE. In addition, since the network device sends the PDCCH configuration information to the UE to indicate at least one search space of the PDCCH of the UE, the UE can be made to detect the PDCCH in the search space of the PDCCH of the UE indicated by the PDCCH configuration information, thereby ensuring that the UE can Timely and effectively receive the DCI sent by the network device.

本发明实施例的第二方面，提供一种PDCCH的搜索空间的监听方法，应用于UE，该PDCCH的搜索空间的监听方法包括：接收网络设备发送的PDCCH配置信息；监听PDCCH配置信息指示的UE的PDCCH的搜索空间，接收UE的PDCCH的搜索空间对应的下行控制信息DCI。其中，PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，该搜索空间为以下类型中任意一种：公共搜索空间，群组公共搜索空间，专属搜索空间。网络设备使用每种搜索空间发送的下行控制信息DCI的类型不同。A second aspect of the embodiments of the present invention provides a method for monitoring a PDCCH search space, which is applied to a UE. The method for monitoring a PDCCH search space includes: receiving PDCCH configuration information sent by a network device; monitoring the UE indicated by the PDCCH configuration information. The search space of the PDCCH is received, and the downlink control information DCI corresponding to the search space of the PDCCH of the UE is received. The PDCCH configuration information is used to indicate at least one search space of the PDCCH of the UE, and the search space is any one of the following types: a common search space, a group common search space, and a dedicated search space. The types of downlink control information DCI sent by the network device using each search space are different.

本发明实施例中，UE可以在PDCCH配置信息指示的UE的PDCCH的搜索空间监听PDCCH。由于PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，因此UE在PDCCH配置信息的指示的UE的PDCCH的搜索空间进行PDCCH的检测时，可以保证UE能够及时、有效的接收到网络设备发送的DCI。In the embodiment of the present invention, the UE may monitor the PDCCH in the search space of the PDCCH of the UE indicated by the PDCCH configuration information. Since the PDCCH configuration information is used to indicate at least one search space of the PDCCH of the UE, when the UE detects the PDCCH in the search space of the PDCCH of the UE indicated by the PDCCH configuration information, it can ensure that the UE can timely and effectively receive the transmission from the network device. DCI.

本发明实施例的第三方面，提供一种网络设备，该网络设备包括：发送单元。其中，发送单元，用于向UE发送PDCCH配置信息，该PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，该搜索空间为以下类型中任意一种：公共搜索空间、群组公共搜索空间、专属搜索空间。其中，网络设备使用每种搜索空间发送的DCI的类型不同。In a third aspect of the embodiments of the present invention, a network device is provided, and the network device includes: a sending unit. The sending unit is configured to send PDCCH configuration information to the UE, where the PDCCH configuration information is used to indicate at least one search space of the PDCCH of the UE, and the search space is any one of the following types: common search space, group common search space , dedicated search space. The types of DCI sent by the network device using each search space are different.

需要说明的是，网络设备的具体实现方式可以参考上述第一方面提供的PDCCH的搜索空间的配置方法中网络设备的行为功能，在此不再赘述。因此，第三方面提供的网络设备可以达到与上述第一方面相同的有益效果。It should be noted that, for the specific implementation of the network device, reference may be made to the behavior function of the network device in the method for configuring the search space of the PDCCH provided in the first aspect, and details are not described herein again. Therefore, the network device provided in the third aspect can achieve the same beneficial effects as the above-mentioned first aspect.

本发明实施例的第四方面，提供一种UE，该UE包括：接收单元。其中，接收单元，用于接收网络设备发送的PDCCH配置信息，其中，PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，该搜索空间为以下类型中任意一种：公共搜索空间，群组公共搜索空间，专属搜索空间，网络设备使用每种搜索空间发送的下行控制信息DCI的类型不同。接收单元，还用于监听PDCCH配置信息指示的UE的PDCCH的搜索空间，接收UE的PDCCH的搜索空间对应的下行控制信息DCI。A fourth aspect of the embodiments of the present invention provides a UE, where the UE includes: a receiving unit. The receiving unit is configured to receive the PDCCH configuration information sent by the network device, wherein the PDCCH configuration information is used to indicate at least one search space of the PDCCH of the UE, and the search space is any one of the following types: common search space, group search space The common search space, the exclusive search space, and the type of downlink control information DCI sent by the network device using each search space are different. The receiving unit is further configured to monitor the search space of the PDCCH of the UE indicated by the PDCCH configuration information, and receive the downlink control information DCI corresponding to the search space of the PDCCH of the UE.

需要说明的是，UE的具体实现方式可以参考上述第二方面提供的PDCCH的搜索空间的监听方法中UE的行为功能，在此不再赘述。因此，第四方面提供的UE可以达到与上述第二方面相同的有益效果。It should be noted that, for the specific implementation of the UE, reference may be made to the behavior function of the UE in the method for monitoring the search space of the PDCCH provided in the second aspect, and details are not described herein again. Therefore, the UE provided in the fourth aspect can achieve the same beneficial effects as the above-mentioned second aspect.

本发明实施例的第五方面，提供一种网络设备，该网络设备可以包括：处理器、存储器和存储在存储器上并可在处理器上运行的计算机程序。其中，该计算机程序被处理器执行时实现如第一方面所述的PDCCH的搜索空间的配置方法。In a fifth aspect of the embodiments of the present invention, a network device is provided. The network device may include: a processor, a memory, and a computer program stored in the memory and executable on the processor. Wherein, when the computer program is executed by the processor, the method for configuring the search space of the PDCCH according to the first aspect is implemented.

本发明实施例的第六方面，提供一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，该计算机程序被第五方面中的处理器执行时实现如第一方面所述的PDCCH的搜索空间的配置方法。In a sixth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by the processor in the fifth aspect, the implementation is as described in the first aspect. The configuration method of the search space of the PDCCH.

本发明实施例的第七方面，提供一种计算机程序产品，当计算机程序产品在计算机上运行时，使得计算机执行如第一方面所述的PDCCH的搜索空间的配置方法。A seventh aspect of the embodiments of the present invention provides a computer program product that, when the computer program product runs on a computer, causes the computer to execute the method for configuring the search space of the PDCCH as described in the first aspect.

本发明实施例的第八方面，提供一种PDCCH的搜索空间的配置装置，该PDCCH的搜索空间的配置装置以芯片的产品形态存在，该PDCCH的搜索空间的配置装置可以包括：处理器、存储器和存储在存储器上并可在处理器上运行的计算机程序。其中，该计算机程序被处理器执行时实现如第一方面所述的PDCCH的搜索空间的配置方法。An eighth aspect of the embodiments of the present invention provides an apparatus for configuring a search space of a PDCCH. The apparatus for configuring a search space for a PDCCH exists in the form of a chip. The apparatus for configuring a search space for a PDCCH may include: a processor, a memory and computer programs stored in memory and executable on processors. Wherein, when the computer program is executed by the processor, the method for configuring the search space of the PDCCH according to the first aspect is implemented.

本发明实施例的第九方面，提供一种UE，该UE可以包括：处理器、存储器和存储在存储器上并可在处理器上运行的计算机程序。其中，该计算机程序被处理器执行时实现如第二方面所述的PDCCH的搜索空间的监听方法。A ninth aspect of the embodiments of the present invention provides a UE, where the UE may include: a processor, a memory, and a computer program stored in the memory and executable on the processor. Wherein, when the computer program is executed by the processor, the method for monitoring the search space of the PDCCH according to the second aspect is implemented.

本发明实施例的第十方面，提供一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，该计算机程序被第九方面中的处理器执行时实现如第二方面所述的PDCCH的搜索空间的监听方法。A tenth aspect of the embodiments of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor in the ninth aspect, the implementation is as described in the second aspect The monitoring method of the search space of the PDCCH.

本发明实施例的第十一方面，提供一种计算机程序产品，当计算机程序产品在计算机上运行时，使得计算机执行如第二方面所述的PDCCH的搜索空间的监听方法。An eleventh aspect of the embodiments of the present invention provides a computer program product that, when the computer program product runs on a computer, enables the computer to execute the method for monitoring the search space of the PDCCH as described in the second aspect.

本发明实施例的第十二方面，提供一种PDCCH的搜索空间的监听装置，该PDCCH的搜索空间的监听装置以芯片的产品形态存在，该PDCCH的搜索空间的监听装置可以包括：处理器、存储器和存储在存储器上并可在处理器上运行的计算机程序。其中，该计算机程序被处理器执行时实现如第二方面所述的PDCCH的搜索空间的监听方法。A twelfth aspect of the embodiments of the present invention provides a PDCCH search space monitoring device, the PDCCH search space monitoring device exists in the form of a chip product, and the PDCCH search space monitoring device may include: a processor, Memory and computer programs stored on the memory and executable on the processor. Wherein, when the computer program is executed by the processor, the method for monitoring the search space of the PDCCH according to the second aspect is implemented.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例。对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

图1为本发明实施例提供的一种系统架构示意图；1 is a schematic diagram of a system architecture according to an embodiment of the present invention;

图2为本发明实施例提供的一种UE的结构示意图一；FIG. 2 is a schematic structural diagram 1 of a UE according to an embodiment of the present invention;

图3为本发明实施例提供的一种基站的结构示意图；FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention;

图4为本发明实施例提供的一种PDCCH的搜索空间的配置方法流程图；4 is a flowchart of a method for configuring a search space of a PDCCH according to an embodiment of the present invention;

图5为本发明实施例提供的一种PDCCH的搜索空间的监听方法流程图；5 is a flowchart of a method for monitoring a search space of a PDCCH according to an embodiment of the present invention;

图6为本发明实施例提供的一种网络设备的结构示意图；FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;

图7为本发明实施例提供的一种UE的结构示意图二。FIG. 7 is a second schematic structural diagram of a UE according to an embodiment of the present invention.

具体实施方式Detailed ways

在本发明的描述中，除非另有说明，“多个”的含义是指两个或两个以上。例如，多个公共搜索空间是指包含两个或两个以上公共搜索空间。In the description of the present invention, unless otherwise specified, the meaning of "plurality" means two or more. For example, multiple common search spaces refers to including two or more common search spaces.

在本发明实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本发明实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as an example, illustration or illustration. Any embodiments or designs described as "exemplary" or "such as" in the embodiments of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

此外，本发明的描述中所提到的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括其他没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also Include other steps or units inherent to these processes, methods, products or devices.

以下描述中，为了说明而不是为了限定，提出了诸如特定系统结构、接口、技术之类的具体细节，以便透切理解本发明。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本发明。在其它情况中，省略对众所周知的装置、电路以及方法的详细说明，以免不必要的细节妨碍本发明的描述。In the following description, for purposes of explanation and not limitation, specific details are set forth, such as specific system structures, interfaces, techniques, etc., to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

本发明实施例提供的PDCCH的搜索空间的配置、监听方法及设备，可以应用于配置PDCCH的搜索空间以及监听PDCCH的搜索空间的过程中。The PDCCH search space configuration, monitoring method, and device provided by the embodiments of the present invention can be applied to the process of configuring the PDCCH search space and monitoring the PDCCH search space.

下面对本发明实施例提供的PDCCH的搜索空间的配置、监听方法及设备中涉及的一些概念做解释说明。Some concepts involved in the configuration of the search space of the PDCCH, the monitoring method, and the device provided by the embodiments of the present invention are explained below.

搜索空间：LTE系统中搜索空间定义为针对每个聚合等级的一系列需要盲检测控制信道元素(Control Channel Element，CCE)资源，包括CCE起始位置和候选资源数目。Search space: The search space in the LTE system is defined as a series of control channel element (Control Channel Element, CCE) resources that need to be blindly detected for each aggregation level, including the starting position of the CCE and the number of candidate resources.

公共搜索空间：一个公共搜索空间供一个小区内的所有UE共同使用。Common search space: A common search space is shared by all UEs in a cell.

群组公共搜索空间：一个群组公共搜索空间供一个小区内包含有M个UE的一个组使用。Group common search space: A group common search space is used by a group including M UEs in a cell.

专属搜索空间：一个专属搜索空间供一个UE使用。Dedicated search space: A dedicated search space is used by one UE.

控制资源集(Control Resource Set，CORESET)：是NR中引入的一类时频资源集合，UE在对应的控制资源集进行PDCCH的检测。控制资源集由一组资源粒子组(ResourceElement Group，REG)组成。Control resource set (Control Resource Set, CORESET): is a type of time-frequency resource set introduced in NR, and the UE performs PDCCH detection in the corresponding control resource set. A control resource set consists of a set of resource particle groups (ResourceElement Group, REG).

准共址QCL(Quasi-Co-Location)关系：两个信号的QCL关系是指两个信号在统计特性上具有一些相关性，包括时延扩展，多普勒扩展，多普勒频偏,平均增益以及平均延迟等。Quasi-Co-Location (Quasi-Co-Location) relationship: The QCL relationship of two signals means that the two signals have some correlation in statistical characteristics, including delay spread, Doppler spread, Doppler frequency offset, average gain and average delay, etc.

宽带参考信号：在搜索空间对应的控制资源集带宽上发送的参考信号。Wideband reference signal: a reference signal sent on the bandwidth of the control resource set corresponding to the search space.

窄带参考信号：在搜索空间内的PDCCH所占用的CCE带宽内的参考信号。Narrowband reference signal: a reference signal within the CCE bandwidth occupied by the PDCCH in the search space.

下面将结合附图对本发明实施例的实施方式进行详细描述。The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

请参考图1，其示出了本发明实施例提供的一种PDCCH的搜索空间的配置、监听方法所应用的系统架构示意图。如图1所示，该系统架构可以包括UE 01和网络设备(如基站02)。其中，UE 01和基站02通信连接。Please refer to FIG. 1 , which shows a schematic diagram of a system architecture to which a method for configuring a search space of a PDCCH and a monitoring method according to an embodiment of the present invention is applied. As shown in FIG. 1, the system architecture may includeUE 01 and network equipment (eg, base station 02). TheUE 01 and thebase station 02 are connected in communication.

其中，UE 01是一种指向用户提供语音和/或数据连通性的设备，具有有线/无线连接功能的手持式设备，或连接到无线调制解调器的其他处理设备。UE 01可以经过无线接入网(Radio Access Network，RAN)与一个或多个网络设备进行通信。UE 01可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，也可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与RAN交换语言和/或数据，例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal DigitalAssistant，PDA)等设备，本发明实施例对此不作任何限制。Among them,UE 01 is a device that provides voice and/or data connectivity to a user, a handheld device with wired/wireless connectivity, or other processing device connected to a wireless modem. TheUE 01 may communicate with one or more network devices via a radio access network (Radio Access Network, RAN).UE 01 may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, or a portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile device that exchanges with the RAN Language and/or data, for example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistants) , PDA) and other devices, this embodiment of the present invention does not make any restrictions on this.

其中，基站是一种部署在无线接入网中用以为UE 01提供无线通信功能的装置。基站可以包括各种形式的宏基站、微基站、中继站、接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如，在LTE系统中，称为演进的基站(evolved NodeB，eNB或eNodeB)，在第3代移动通信技术(The 3rd GenerationTelecommunication，3G)系统中，称为基站(Node B)等等。随着通信技术的演进，“基站”这一名称可能会变化。The base station is a device deployed in the radio access network to provide theUE 01 with a wireless communication function. Base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices with base station functions may be different. For example, in LTE systems, they are called evolved NodeBs (eNBs or eNodeBs). In the mobile communication technology (The 3rd Generation Telecommunication, 3G) system, it is called a base station (Node B) and so on. As communication technology evolves, the name "base station" may change.

本发明实施例提供一种UE，图2示出的是本发明实施例提供的UE 01的结构示意图。如图2所示，UE 01包括：至少一个处理器11、存储器12、用户接口13和至少一个网络接口14。UE 01中的各个组件通过总线系统15耦合在一起。An embodiment of the present invention provides a UE, and FIG. 2 shows a schematic structural diagram of aUE 01 provided by an embodiment of the present invention. As shown in FIG. 2 , theUE 01 includes: at least oneprocessor 11 , amemory 12 , auser interface 13 and at least onenetwork interface 14 . The individual components in theUE 01 are coupled together by abus system 15 .

可以理解的是，总线系统15用于实现这些组件之间的连接通信。总线系统15除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图2中将各种总线都标为总线系统15。It will be understood that thebus system 15 is used to implement the connection communication between these components. In addition to the data bus, thebus system 15 also includes a power bus, a control bus and a status signal bus. For the sake of clarity, however, the various buses are designated asbus system 15 in FIG. 2 .

其中，用户接口13可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球、触感板或者触摸屏等。Theuser interface 13 may include a display, a keyboard or a pointing device (eg, a mouse, a trackball, a touch pad or a touch screen, etc.).

可以理解的是，本发明实施例中的存储器12可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(RandomAccess Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double DataRate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本发明实施例描述的存储器12旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that thememory 12 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be Random Access Memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double DataRate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct memory bus random access memory (Direct Rambus RAM, DRRAM). Thememory 12 described in the embodiments of the present invention is intended to include, but not be limited to, these and any other suitable types of memory.

在一些实施方式中，存储器12存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统121和应用程序122。In some embodiments,memory 12 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set of them: anoperating system 121 andapplications 122 .

其中，操作系统121，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序122，包含各种应用程序，例如媒体播放器、浏览器等，用于实现各种应用业务。实现本发明实施例方法的程序可以包含在应用程序122中。Theoperating system 121 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. Theapplication program 122 includes various application programs, such as a media player, a browser, etc., for implementing various application services. A program for implementing the method of the embodiment of the present invention may be included in theapplication program 122 .

在本发明实施例中，UE 01还可以包括：存储在存储器12上并可在处理器11上运行的计算机程序，该计算机程序被处理器11执行时实现本发明实施例提供的方法的步骤。In this embodiment of the present invention, theUE 01 may further include: a computer program stored in thememory 12 and executable on theprocessor 11 , and when the computer program is executed by theprocessor 11 , implements the steps of the method provided by the embodiment of the present invention.

上述本发明实施例揭示的方法可以应用于处理器11中，或者由处理器11实现。处理器11可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器11中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器11可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(FieldProgrammable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器12，处理器11读取存储器12中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器11执行时实现如本发明实施例提供的方法实施例的各步骤。The methods disclosed in the above embodiments of the present invention may be applied to theprocessor 11 or implemented by theprocessor 11 . Theprocessor 11 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in theprocessor 11 or an instruction in the form of software. The above-mentionedprocessor 11 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other possible Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other computer-readable storage media that are mature in the art. The computer-readable storage medium is located in thememory 12, and theprocessor 11 reads the information in thememory 12, and completes the steps of the above method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by theprocessor 11, each step of the method embodiment provided by the embodiment of the present invention is implemented.

可以理解的是，本发明实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个ASIC、DSP、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、FPGA、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。It can be understood that the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more ASIC, DSP, digital signal processing device (DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), FPGA, general purpose processor, controller, microcomputer Controllers, microprocessors, other electronic units for performing the functions described herein, or a combination thereof.

对于软件实现，可通过执行本发明实施例所述功能的模块(例如过程、函数等)来实现本发明实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。For software implementation, the techniques described in the embodiments of the present invention may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present invention. Software codes may be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

本发明实施例提供一种基站，图3示出的是本发明实施例提供的基站02的结构示意图。如图3所示，基站02包括：处理器21、收发机22、存储器23、用户接口24和总线接口。An embodiment of the present invention provides a base station, and FIG. 3 is a schematic structural diagram of abase station 02 provided by an embodiment of the present invention. As shown in FIG. 3 , thebase station 02 includes: aprocessor 21 , atransceiver 22 , amemory 23 , auser interface 24 and a bus interface.

其中，处理器21可以负责管理总线架构和通常的处理。存储器23可以存储处理器21在执行操作时所使用的数据。Among them, theprocessor 21 may be responsible for managing the bus architecture and general processing.Memory 23 may store data used byprocessor 21 in performing operations.

本发明实施例中，基站02还可以包括：存储在存储器23上并可在处理器21上运行的计算机程序，该计算机程序被处理器21执行时实现本发明实施例提供的方法的步骤。In this embodiment of the present invention, thebase station 02 may further include: a computer program stored in thememory 23 and executable on theprocessor 21, and when the computer program is executed by theprocessor 21, implements the steps of the method provided in the embodiment of the present invention.

在图3中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器21代表的一个或多个处理器和存储器23代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本发明实施例不再对其进行进一步描述。总线接口提供接口。收发机22可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的UE，用户接口24还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 3 , the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented byprocessor 21 and various circuits of memory represented bymemory 23 linked together. The bus architecture can also link together various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and therefore will not be further described in this embodiment of the present invention . The bus interface provides the interface.Transceiver 22 may be multiple elements, ie, including a transmitter and a receiver, providing a means for communicating with various other devices over a transmission medium. For different UEs, theuser interface 24 may also be an interface capable of externally connecting a required device, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

基于图1所示的系统中UE 01与基站02之间的交互，图2所示的UE 01的各模块或组成部分，以及图3所示的基站02的各模块或组成部分，本发明实施例提供一种PDCCH的搜索空间的配置方法，该方法UE与网络设备的交互过程，进行了详细的介绍。具体的，如图4所示，该PDCCH的搜索空间的配置方法可以包括S401-S402：Based on the interaction between theUE 01 and thebase station 02 in the system shown in FIG. 1 , the modules or components of theUE 01 shown in FIG. 2 , and the modules or components of thebase station 02 shown in FIG. 3 , the present invention is implemented. The example provides a method for configuring the search space of the PDCCH, and the interaction process between the UE and the network device of the method is described in detail. Specifically, as shown in FIG. 4 , the method for configuring the search space of the PDCCH may include S401-S402:

S401、网络设备向UE发送PDCCH配置信息。S401. The network device sends PDCCH configuration information to the UE.

其中，PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，该搜索空间为以下类型中任意一种：公共搜索空间、群组公共搜索空间、专属搜索空间。网络设备使用每种搜索空间发送的DCI的类型不同。The PDCCH configuration information is used to indicate at least one search space of the PDCCH of the UE, and the search space is any one of the following types: a common search space, a group common search space, and a dedicated search space. The type of DCI sent by network devices using each search space is different.

示例性的，网络设备可以通过收发机22向UE发送高层信令，该高层信令中携带有PDCCH配置信息。或者，网络设备也可以通过收发机22向UE广播系统消息(如主信息块)的形式，向UE发送PDCCH配置信息。当然，PDCCH配置信息也可以由网络设备根据系统带宽、子载波间隔、天线配置以及载波频率等信息中的一个或者多个预先定义。Exemplarily, the network device may send high-level signaling to the UE through thetransceiver 22, where the high-level signaling carries PDCCH configuration information. Alternatively, the network device may also send the PDCCH configuration information to the UE in the form of broadcasting a system message (eg, a master information block) to the UE through thetransceiver 22 . Of course, the PDCCH configuration information may also be pre-defined by the network device according to one or more of information such as system bandwidth, subcarrier spacing, antenna configuration, and carrier frequency.

其中，一个公共搜索空间供N个UE共同使用，一个公共搜索空间或者多个公共搜索空间对应一个控制资源集，N为大于或者等于2的正整数。One common search space is shared by N UEs, one common search space or multiple common search spaces correspond to one control resource set, and N is a positive integer greater than or equal to 2.

示例性的，一个公共搜索空间可以供一个小区下的所有UE共同使用。控制资源集是NR中引入的一类时频资源集合，UE在对应的控制资源集进行PDCCH的检测。控制资源集由一组资源粒子组(Resource Element Group，REG)组成。Exemplarily, one common search space may be used by all UEs in one cell. The control resource set is a type of time-frequency resource set introduced in NR, and the UE performs PDCCH detection in the corresponding control resource set. A control resource set consists of a set of resource particle groups (Resource Element Group, REG).

其中，一个群组公共搜索空间供包含有M个UE的一个组使用，一个群组公共搜索空间或者多个群组公共搜索空间对应一个控制资源集，M为大于或者等于2的正整数。One group common search space is used by one group including M UEs, one group common search space or multiple group common search spaces correspond to one control resource set, and M is a positive integer greater than or equal to 2.

例如，假设一个小区内有10个UE，其中包含有3个UE的组1使用一个群组公共搜索空间，包含有4个UE的组2使用一个群组公共搜索空间，包含有3个UE的组3使用一个群组公共搜索空间。For example, assuming that there are 10 UEs in a cell, group 1 including 3 UEs uses a group common search space, group 2 including 4 UEs uses a group common search space, and group 2 including 3 UEs uses a group common search space. Group 3 uses a group common search space.

其中，一个专属搜索空间供一个UE使用，一个专属搜索空间或者多个专属搜索空间对应一个控制资源集。One dedicated search space is used by one UE, and one dedicated search space or multiple dedicated search spaces correspond to one control resource set.

示例性的，本发明实施例的第一种应用场景，搜索空间为公共搜索空间。相应的，网络设备使用公共搜索空间发送的DCI包括以下信息中至少一项：调度系统信息的DCI、调度寻呼信息的DCI、调度随机接入响应消息的DCI。Exemplarily, in the first application scenario of the embodiment of the present invention, the search space is a public search space. Correspondingly, the DCI sent by the network device using the common search space includes at least one of the following information: DCI for scheduling system information, DCI for scheduling paging information, and DCI for scheduling random access response messages.

在本发明实施例的第一种应用场景下，公共搜索空间发送的PDCCH与一个或一组同步信号具有QCL关系。其中，一个或一组同步信号与配置公共搜索空间物理资源的物理广播信道(Physical Broadcast Channel，PBCH)之间存在对应关系。In the first application scenario of the embodiment of the present invention, the PDCCH sent in the common search space has a QCL relationship with one or a group of synchronization signals. There is a corresponding relationship between one or a group of synchronization signals and a physical broadcast channel (Physical Broadcast Channel, PBCH) that configures the physical resources of the common search space.

其中，一个或一组同步信号与配置公共搜索空间物理资源的PBCH之间存在对应关系，具体为一个或一组同步信号与配置公共搜索空间物理资源的PBCH的时间索引相同，即就是一个或一组同步信号与配置公共搜索空间物理资源的PBCH在同一个波束。Among them, there is a corresponding relationship between one or a group of synchronization signals and the PBCH configured with the common search space physical resources, specifically, one or a group of synchronization signals and the time index of the PBCH configured with the common search space physical resources are the same, that is, one or one The group synchronization signal is in the same beam as the PBCH that configures the physical resources of the common search space.

示例性的，本发明实施例的第二种应用场景，搜索空间为群组公共搜索空间。相应的，网络设备使用群组公共搜索空间发送的DCI包括以下信息中至少一项：发送组功率控制命令字的DCI、发送组时隙结构信息的DCI、发送组资源打孔指示信息的DCI。Exemplarily, in the second application scenario of the embodiment of the present invention, the search space is a group public search space. Correspondingly, the DCI sent by the network device using the group common search space includes at least one of the following information: DCI for sending group power control command words, DCI for sending group time slot structure information, and DCI for sending group resource puncturing indication information.

在本发明实施例的第二种应用场景下，群组公共搜索空间发送的PDCCH与一个或一组同步信号具有QCL关系，一个或一组同步信号由网络设备配置；群组公共搜索空间发送的PDCCH与一个或一组信道状态信息-参考信号(Channel State Information-ReferenceSignal，CSI-RS)具有QCL关系，一个或一组CSI-RS由网络设备配置。In the second application scenario of the embodiment of the present invention, the PDCCH sent in the group common search space has a QCL relationship with one or a group of synchronization signals, and one or a group of synchronization signals are configured by network equipment; The PDCCH has a QCL relationship with one or a group of channel state information-reference signals (Channel State Information-Reference Signal, CSI-RS), and the one or a group of CSI-RSs is configured by a network device.

示例性的，在本发明实施例的第二种应用场景下，UE的搜索空间位置可以由网络设备进行显式配置。相应的，PDCCH配置信息具体可以包括UE的搜索空间位置信息，该UE的搜索空间位置信息用于指示UE的搜索空间位置，该UE的搜索空间位置与UE的标识不相关。Exemplarily, in the second application scenario of the embodiment of the present invention, the search space position of the UE may be explicitly configured by the network device. Correspondingly, the PDCCH configuration information may specifically include search space location information of the UE, the search space location information of the UE is used to indicate the search space location of the UE, and the search space location of the UE is not related to the identity of the UE.

其中，UE的搜索空间位置信息可以包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。例如，UE的搜索空间的CCE聚合等级可以包括{1,2,4,8,16,32}。The UE's search space location information may include at least one of the following: the starting position of the UE's search space, the CCE aggregation level of the UE's search space, and the number of PDCCH candidate resources in the UE's search space. For example, the CCE aggregation levels of the UE's search space may include {1, 2, 4, 8, 16, 32}.

示例性的，在本发明实施例的第二种应用场景下，UE的搜索空间位置还可以由网络设备进行隐式配置。相应的，UE的搜索空间位置信息由协议预先配置，UE的搜索空间位置与UE的标识不相关。需要说明的是，UE的搜索空间位置信息的具体内容参考上述实施例中的描述，此处不再赘述。Exemplarily, in the second application scenario of the embodiment of the present invention, the search space position of the UE may also be implicitly configured by the network device. Correspondingly, the search space location information of the UE is pre-configured by the protocol, and the search space location of the UE is not related to the identity of the UE. It should be noted that, for the specific content of the location information of the search space of the UE, reference is made to the description in the foregoing embodiment, and details are not repeated here.

例如，协议预先配置的UE的搜索空间位置信息为固定从CCE#0开始，和/或固定聚合等级。For example, the search space location information of the UE preconfigured by the protocol is fixed starting from CCE#0, and/or fixed aggregation level.

在本发明实施例的第二种应用场景下，本发明实施例包含但不限于满足以下至少一项条件时，UE的搜索空间位置相同：UE的搜索空间的起始位置相同；UE的搜索空间的CCE聚合等级相同；UE的搜索空间的PDCCH候选资源数目相同。In the second application scenario of the embodiments of the present invention, the embodiments of the present invention include, but are not limited to, when at least one of the following conditions is satisfied, the search space positions of the UEs are the same: the starting positions of the search spaces of the UEs are the same; the search spaces of the UEs are the same; The CCE aggregation level of the UE is the same; the number of PDCCH candidate resources in the search space of the UE is the same.

示例性的，本发明实施例的第三种应用场景，搜索空间为专属搜索空间。相应的，网络设备使用专属搜索空间发送的DCI包括以下信息中至少一项：UE专属调度DCI、半持续调度DCI。不同UE的PDCCH的专属搜索空间对应的控制资源集的时频资源正交、重叠或部分重叠。Exemplarily, in the third application scenario of the embodiment of the present invention, the search space is an exclusive search space. Correspondingly, the DCI sent by the network device using the dedicated search space includes at least one of the following information: UE-specific scheduling DCI and semi-persistent scheduling DCI. The time-frequency resources of the control resource sets corresponding to the dedicated search spaces of the PDCCHs of different UEs are orthogonal, overlap or partially overlap.

在本发明实施例的第三种应用场景下，专属搜索空间发送的PDCCH与一个或一组同步信号具有QCL关系，一个或一组同步信号可以由网络设备配置；专属搜索空间发送的PDCCH与一个或一组CSI-RS具有QCL关系，一个或一组CSI-RS由网络设备配置。In the third application scenario of the embodiment of the present invention, the PDCCH sent in the dedicated search space has a QCL relationship with one or a group of synchronization signals, and one or a group of synchronization signals can be configured by the network device; the PDCCH sent in the dedicated search space and a Or a group of CSI-RSs have a QCL relationship, and one or a group of CSI-RSs are configured by a network device.

示例性的，在本发明实施例的第三种应用场景下，UE的搜索空间位置可以由网络设备进行显式配置。相应的，PDCCH配置信息具体可以包括UE的搜索空间位置信息，UE的搜索空间位置与UE的标识相关。需要说明的是，UE的搜索空间位置信息的具体内容参考上述实施例中的描述，此处不再赘述。Exemplarily, in the third application scenario of the embodiment of the present invention, the search space position of the UE may be explicitly configured by the network device. Correspondingly, the PDCCH configuration information may specifically include search space location information of the UE, and the search space location of the UE is related to the identity of the UE. It should be noted that, for the specific content of the location information of the search space of the UE, reference is made to the description in the foregoing embodiment, and details are not repeated here.

示例性的，在本发明实施例的第三种应用场景下，UE的搜索空间位置还可以由网络设备进行隐式配置。相应的，UE的搜索空间位置信息由协议预先配置，UE的搜索空间位置与UE的标识相关。需要说明的是，UE的搜索空间位置信息的具体内容参考上述实施例中的描述，此处不再赘述。Exemplarily, in the third application scenario of the embodiment of the present invention, the search space position of the UE may also be implicitly configured by the network device. Correspondingly, the search space location information of the UE is pre-configured by the protocol, and the search space location of the UE is related to the identity of the UE. It should be noted that, for the specific content of the location information of the search space of the UE, reference is made to the description in the foregoing embodiment, and details are not repeated here.

S402、UE接收网络设备发送的PDCCH配置信息。S402, the UE receives the PDCCH configuration information sent by the network device.

其中，UE可以通过网络接口14接收网络设备发送的PDCCH配置信息。UE可以根据PDCCH配置信息的指示确定UE的PDCCH的搜索空间。The UE may receive the PDCCH configuration information sent by the network device through thenetwork interface 14 . The UE may determine the search space of the PDCCH of the UE according to the indication of the PDCCH configuration information.

本发明实施例提供一种PDCCH的搜索空间的配置方法，网络设备通过向UE发送PDCCH配置信息的方法，达到了对UE的PDCCH的搜索空间进行配置的目的。并且，由于网络设备向UE发送PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，因此可以使得UE在PDCCH配置信息的指示的UE的PDCCH的搜索空间进行PDCCH的检测，从而保证了UE能够及时、有效的接收到网络设备发送的DCI。An embodiment of the present invention provides a method for configuring a search space of a PDCCH. The network device achieves the purpose of configuring the search space of the PDCCH of the UE by sending the PDCCH configuration information to the UE. In addition, since the network device sends the PDCCH configuration information to the UE to indicate at least one search space of the PDCCH of the UE, the UE can be made to detect the PDCCH in the search space of the PDCCH of the UE indicated by the PDCCH configuration information, thereby ensuring that the UE can Timely and effectively receive the DCI sent by the network device.

进一步的，UE在被配置了UE的PDCCH的搜索空间之后，可以在该UE的PDCCH的搜索空间进行PDCCH的检测。具体的，本发明实施例还提供一种PDCCH的搜索空间的监听方法，如图5所示，与图4所示的PDCCH的搜索空间的配置方法相比，在上述S402之后，还执行S501，在此只对不同的地方进行详细说明，参见图5，该PDCCH的搜索空间的监听方法包括：Further, after the UE is configured with the search space of the PDCCH of the UE, the UE may detect the PDCCH in the search space of the PDCCH of the UE. Specifically, an embodiment of the present invention further provides a method for monitoring the search space of the PDCCH. As shown in FIG. 5 , compared with the method for configuring the search space of the PDCCH shown in FIG. 4 , after the above S402, S501 is also performed, Only different places will be described in detail here. Referring to FIG. 5 , the monitoring method of the search space of the PDCCH includes:

S401、网络设备向UE发送PDCCH配置信息。S401. The network device sends PDCCH configuration information to the UE.

S402、UE接收网络设备发送的PDCCH配置信息。S402, the UE receives the PDCCH configuration information sent by the network device.

S501、UE监听PDCCH配置信息指示的UE的PDCCH的搜索空间，接收UE的PDCCH的搜索空间对应的DCI。S501. The UE monitors the search space of the PDCCH of the UE indicated by the PDCCH configuration information, and receives the DCI corresponding to the search space of the PDCCH of the UE.

其中，UE可以在网络设备配置的UE的PDCCH的搜索空间，接收网络设备发送的DCI，且DCI的类型与UE的PDCCH的搜索空间对应。The UE may receive the DCI sent by the network device in the search space of the PDCCH of the UE configured by the network device, and the type of the DCI corresponds to the search space of the PDCCH of the UE.

例如，网络设备使用公共搜索空间1发送DCI，UE在该UE的PDCCH的公共搜索空间1监听PDCCH，以接收该UE的PDCCH的公共搜索空间1对应的DCI(如调度系统信息的DCI、调度寻呼信息的DCI和/或调度随机接入响应消息的DCI)；网络设备使用群组公共搜索空间2发送DCI，UE在该UE的PDCCH的群组公共搜索空间2监听PDCCH，以接收该UE的PDCCH的群组公共搜索空间2对应的DCI(发送组功率控制命令字的DCI、发送组时隙结构信息的DCI和/或发送组资源打孔指示信息的DCI)。For example, the network device uses the common search space 1 to send DCI, and the UE monitors the PDCCH in the common search space 1 of the PDCCH of the UE to receive the DCI corresponding to the common search space 1 of the PDCCH of the UE (such as the DCI of the scheduling system information, the scheduling search The DCI of the call information and/or the DCI of the scheduling random access response message); the network device uses the group common search space 2 to send the DCI, and the UE monitors the PDCCH in the group common search space 2 of the UE's PDCCH to receive the UE's The DCI corresponding to the group common search space 2 of the PDCCH (the DCI for transmitting the group power control command word, the DCI for transmitting the group time slot structure information and/or the DCI for transmitting the group resource puncturing indication information).

示例性的，本发明实施例中，UE在公共搜索空间内监听PDCCH所使用的参考信号包括宽带参考信号或者窄带参考信号，该宽带参考信号为在公共搜索空间对应的控制资源集带宽上发送的参考信号，该窄带参考信号为在公共搜索空间内的PDCCH所占用的CCE带宽内的参考信号。Exemplarily, in this embodiment of the present invention, the reference signal used by the UE to monitor the PDCCH in the common search space includes a wideband reference signal or a narrowband reference signal, and the wideband reference signal is sent on the bandwidth of the control resource set corresponding to the common search space. Reference signal, the narrowband reference signal is a reference signal within the CCE bandwidth occupied by the PDCCH in the common search space.

示例性的，本发明实施例中，UE在群组公共搜索空间内监听PDCCH所使用的参考信号包括宽带参考信号或者窄带参考信号，该宽带参考信号为在群组公共搜索空间对应的控制资源集带宽上发送的参考信号，该窄带参考信号为在群组公共搜索空间内的PDCCH所占用的CCE带宽内的参考信号。Exemplarily, in this embodiment of the present invention, the reference signal used by the UE to monitor the PDCCH in the group common search space includes a wideband reference signal or a narrowband reference signal, and the wideband reference signal is a control resource set corresponding to the group common search space. A reference signal sent over the bandwidth, where the narrowband reference signal is a reference signal within the CCE bandwidth occupied by the PDCCH in the group common search space.

示例性的，本发明实施例中，UE在专属搜索空间内监听PDCCH所使用的参考信号包括窄带参考信号，该窄带参考信号为在专属搜索空间内的PDCCH所占用的CCE带宽内的参考信号。Exemplarily, in this embodiment of the present invention, the reference signal used by the UE to monitor the PDCCH in the dedicated search space includes a narrowband reference signal, and the narrowband reference signal is a reference signal within the CCE bandwidth occupied by the PDCCH in the dedicated search space.

本发明实施例提供一种PDCCH的搜索空间的监听方法，UE可以在PDCCH配置信息指示的UE的PDCCH的搜索空间监听PDCCH。由于PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，因此UE在PDCCH配置信息的指示的UE的PDCCH的搜索空间进行PDCCH的检测时，可以保证UE能够及时、有效的接收到网络设备发送的DCI。An embodiment of the present invention provides a method for monitoring a search space of a PDCCH, and a UE can monitor the PDCCH in the search space of the PDCCH of the UE indicated by the PDCCH configuration information. Since the PDCCH configuration information is used to indicate at least one search space of the PDCCH of the UE, when the UE detects the PDCCH in the search space of the PDCCH of the UE indicated by the PDCCH configuration information, it can ensure that the UE can timely and effectively receive the transmission from the network device. DCI.

上述主要从网络设备和UE的角度对本发明实施例提供的方案进行了介绍。可以理解的是，网络设备和UE为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的网络设备和UE及算法步骤，本发明能够以硬件，或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。The foregoing mainly introduces the solutions provided by the embodiments of the present invention from the perspectives of network devices and UEs. It can be understood that, in order to implement the above functions, the network device and the UE include corresponding hardware structures and/or software modules for performing each function. Those skilled in the art should easily realize that the present invention can be implemented in hardware, or a combination of hardware and computer software, in conjunction with the network devices and UEs and algorithm steps described in the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

本发明实施例可以根据上述方法示例对网络设备和UE进行功能模块或者功能单元的划分，例如，可以对应各个功能划分各个功能模块或者功能单元，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块或者功能单元的形式实现。其中，本发明实施例中对模块或者单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。In this embodiment of the present invention, the network device and the UE may be divided into functional modules or functional units according to the foregoing method examples. For example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated in in a processing module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules or functional units. Wherein, the division of modules or units in the embodiments of the present invention is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

在采用对应各个功能划分各个功能模块的情况下，图6示出了上述和实施例中涉及的网络设备的一种可能的结构示意图，如图6所示，该网络设备600可以包括：发送单元601。In the case where each functional module is divided according to each function, FIG. 6 shows a possible schematic structural diagram of the network device involved in the above and the embodiment. As shown in FIG. 6 , thenetwork device 600 may include: a sendingunit 601.

其中，发送单元601用于向UE发送PDCCH配置信息，该PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，该搜索空间为以下类型中任意一种：公共搜索空间、群组公共搜索空间、专属搜索空间。其中，网络设备使用每种搜索空间发送的DCI的类型不同。The sendingunit 601 is configured to send PDCCH configuration information to the UE, where the PDCCH configuration information is used to indicate at least one search space of the PDCCH of the UE, and the search space is any one of the following types: common search space, group common search space , dedicated search space. The types of DCI sent by the network device using each search space are different.

其中，发送单元601用于支持上述实施例中的S401，和/或用于本文所描述的技术的其它过程。Among them, the sendingunit 601 is used to support S401 in the above-mentioned embodiments, and/or used for other processes of the technology described herein.

在一种可能的实现方式中，一个公共搜索空间供N个UE共同使用，一个公共搜索空间或者多个公共搜索空间对应一个控制资源集，N为大于或者等于2的正整数。一个群组公共搜索空间供包含有M个UE的一个组使用，一个群组公共搜索空间或者多个群组公共搜索空间对应一个控制资源集，M为大于或者等于2的正整数。一个专属搜索空间供一个UE使用，一个专属搜索空间或者多个专属搜索空间对应一个控制资源集。In a possible implementation manner, one common search space is shared by N UEs, one common search space or multiple common search spaces correspond to one control resource set, and N is a positive integer greater than or equal to 2. One group common search space is used by one group including M UEs, one group common search space or multiple group common search spaces correspond to one control resource set, and M is a positive integer greater than or equal to 2. One dedicated search space is used by one UE, and one dedicated search space or multiple dedicated search spaces correspond to one control resource set.

在一种可能的实现方式中，当搜索空间为公共搜索空间时，DCI包括以下信息中至少一项：调度系统信息的DCI；调度寻呼信息的DCI；调度随机接入响应消息的DCI。In a possible implementation manner, when the search space is a common search space, the DCI includes at least one of the following information: DCI for scheduling system information; DCI for scheduling paging information; DCI for scheduling random access response messages.

在一种可能的实现方式中，当搜索空间为群组公共搜索空间时，DCI包括以下信息中至少一项：发送组功率控制命令字的DCI；发送组时隙结构信息的DCI；发送组资源打孔指示信息的DCI。In a possible implementation manner, when the search space is a group common search space, the DCI includes at least one item of the following information: DCI for sending group power control command words; DCI for sending group time slot structure information; sending group resources DCI for puncturing indication information.

在一种可能的实现方式中，当搜索空间为专属搜索空间时，DCI包括以下信息中至少一项：UE专属调度DCI；半持续调度DCI。In a possible implementation manner, when the search space is a dedicated search space, the DCI includes at least one item of the following information: UE-specific scheduling DCI; semi-persistent scheduling DCI.

在一种可能的实现方式中，不同UE的PDCCH的专属搜索空间对应的控制资源集的时频资源正交、重叠或部分重叠。In a possible implementation manner, the time-frequency resources of the control resource sets corresponding to the dedicated search spaces of the PDCCHs of different UEs are orthogonal, overlap, or partially overlap.

在一种可能的实现方式中，公共搜索空间发送的PDCCH与一个或一组同步信号具有准共址QCL关系，其中，一个或一组同步信号与配置公共搜索空间物理资源的物理广播信道PBCH之间存在对应关系。In a possible implementation manner, the PDCCH sent in the common search space has a quasi-co-located QCL relationship with one or a group of synchronization signals, wherein the one or a group of synchronization signals and the physical broadcast channel PBCH configuring the physical resources of the common search space are in a quasi-co-located QCL relationship. There is a correspondence between them.

在一种可能的实现方式中，一个或一组同步信号与配置公共搜索空间物理资源的PBCH之间存在对应关系，具体为一个或一组同步信号与配置公共搜索空间物理资源的PBCH的时间索引相同。In a possible implementation manner, there is a correspondence between one or a group of synchronization signals and the PBCH configured with the common search space physical resources, specifically the time index of the one or a group of synchronization signals and the PBCH configured with the common search space physical resources same.

在一种可能的实现方式中，群组公共搜索空间发送的PDCCH与一个或一组同步信号具有QCL关系，一个或一组同步信号由网络设备配置；群组公共搜索空间发送的PDCCH与一个或一组信道状态信息-参考信号CSI-RS具有QCL关系，一个或一组CSI-RS由网络设备配置。In a possible implementation manner, the PDCCH sent in the group common search space has a QCL relationship with one or a group of synchronization signals, and one or a group of synchronization signals is configured by the network device; the PDCCH sent in the group common search space is associated with one or a group of synchronization signals. A group of channel state information-reference signal CSI-RSs have a QCL relationship, and one or a group of CSI-RSs are configured by a network device.

在一种可能的实现方式中，PDCCH配置信息具体包括UE的搜索空间位置信息，UE的搜索空间位置与UE的标识不相关。其中，UE的搜索空间位置信息包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的控制信道元素CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。In a possible implementation manner, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is not related to the identity of the UE. The UE's search space location information includes at least one of the following: the starting position of the UE's search space, the CCE aggregation level of control channel elements in the UE's search space, and the number of PDCCH candidate resources in the UE's search space.

在一种可能的实现方式中，UE的搜索空间位置信息由协议预先配置；UE的搜索空间位置与UE的标识不相关；UE的搜索空间位置信息包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。In a possible implementation manner, the UE's search space location information is preconfigured by a protocol; the UE's search space location is not related to the UE's identity; the UE's search space location information includes at least one of the following: the start of the UE's search space The starting position, the CCE aggregation level of the UE's search space, and the number of PDCCH candidate resources in the UE's search space.

在一种可能的实现方式中，满足以下至少一项条件的UE的搜索空间位置相同：UE的搜索空间的起始位置相同；UE的搜索空间的CCE聚合等级相同；UE的搜索空间的PDCCH候选资源数目相同。In a possible implementation manner, the search space positions of the UEs satisfying at least one of the following conditions are the same: the starting positions of the search spaces of the UEs are the same; the CCE aggregation levels of the search spaces of the UEs are the same; the PDCCH candidates of the search spaces of the UEs are the same The number of resources is the same.

在一种可能的实现方式中，专属搜索空间发送的PDCCH与一个或一组同步信号具有QCL关系，一个或一组同步信号由网络设备配置；专属搜索空间发送的PDCCH与一个或一组CSI-RS具有QCL关系，一个或一组CSI-RS由网络设备配置。In a possible implementation manner, the PDCCH sent in the dedicated search space has a QCL relationship with one or a group of synchronization signals, and one or a group of synchronization signals is configured by a network device; the PDCCH sent in the dedicated search space is associated with one or a group of CSI- RSs have a QCL relationship, and one or a group of CSI-RSs are configured by network equipment.

在一种可能的实现方式中，PDCCH配置信息具体包括UE的搜索空间位置信息，UE的搜索空间位置与UE的标识相关；其中，UE的搜索空间位置信息包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。In a possible implementation, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is related to the identity of the UE; wherein the search space location information of the UE includes at least one of the following: the search space of the UE , the CCE aggregation level of the UE's search space, and the number of PDCCH candidate resources in the UE's search space.

在一种可能的实现方式中，UE的搜索空间位置信息由协议预先配置；述UE的搜索空间位置与UE的标识相关；UE的搜索空间位置信息包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。In a possible implementation manner, the UE's search space location information is preconfigured by a protocol; the UE's search space location is related to the UE's identity; the UE's search space location information includes at least one of the following: the start of the UE's search space The starting position, the CCE aggregation level of the UE's search space, and the number of PDCCH candidate resources in the UE's search space.

当然，本发明实施例提供的网络设备600包括但不限于上述所述的单元，例如网络设备600中还可以包括接收单元以及存储单元。Of course, thenetwork device 600 provided in this embodiment of the present invention includes but is not limited to the above-mentioned units. For example, thenetwork device 600 may further include a receiving unit and a storage unit.

本发明实施例还提供一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，当网络设备600的处理器执行该计算机程序时，该网络设备600执行图4和图5中任一附图中的相关方法步骤。An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium. When the processor of thenetwork device 600 executes the computer program, thenetwork device 600 executes the program shown in FIG. 4 and FIG. 5 . Relevant method steps in any of the figures.

本发明实施例还提供了一种计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行图4和图5中任一附图中的相关方法步骤。An embodiment of the present invention also provides a computer program product, which, when the computer program product runs on a computer, causes the computer to execute the relevant method steps in any one of FIG. 4 and FIG. 5 .

其中，本发明实施例提供的网络设备600、计算机可读存储介质或者计算机程序产品均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。Wherein, thenetwork device 600, the computer-readable storage medium, or the computer program product provided in the embodiments of the present invention are all used to execute the corresponding methods provided above. Therefore, for the beneficial effects that can be achieved, reference may be made to the above-provided methods. The beneficial effects in the corresponding method will not be repeated here.

在采用对应各个功能划分各个功能模块的情况下，图7示出了上述和实施例中涉及的UE的一种可能的结构示意图，如图7所示，该UE 700可以包括：接收单元701。In the case where each functional module is divided according to each function, FIG. 7 shows a possible schematic structural diagram of the UE involved in the above and the embodiments. As shown in FIG. 7 , theUE 700 may include: a receivingunit 701 .

其中，接收单元701用于接收网络设备发送的PDCCH配置信息，以及监听PDCCH配置信息指示的UE的PDCCH的搜索空间，接收UE的PDCCH的搜索空间对应的下行控制信息DCI。其中，PDCCH配置信息用于指示UE的PDCCH的至少一个搜索空间，该搜索空间为以下类型中任意一种：公共搜索空间，群组公共搜索空间，专属搜索空间。网络设备使用每种搜索空间发送的下行控制信息DCI的类型不同。The receivingunit 701 is configured to receive the PDCCH configuration information sent by the network device, monitor the PDCCH search space of the UE indicated by the PDCCH configuration information, and receive downlink control information DCI corresponding to the PDCCH search space of the UE. The PDCCH configuration information is used to indicate at least one search space of the PDCCH of the UE, and the search space is any one of the following types: a common search space, a group common search space, and a dedicated search space. The types of downlink control information DCI sent by the network device using each search space are different.

其中，接收单元701用于支持上述实施例中的S402和S501，和/或用于本文所描述的技术的其它过程。Among them, the receivingunit 701 is used to support S402 and S501 in the above-mentioned embodiments, and/or other processes for the techniques described herein.

在一种可能的实现方式中，一个公共搜索空间供N个UE共同使用，一个公共搜索空间或者多个公共搜索空间对应一个控制资源集，N为大于或者等于2的正整数。一个群组公共搜索空间供包含有M个UE的一个组使用，一个群组公共搜索空间或者多个群组公共搜索空间对应一个控制资源集，M为大于或者等于2的正整数。一个专属搜索空间供一个UE使用，一个专属搜索空间或者多个专属搜索空间对应一个控制资源集。In a possible implementation manner, one common search space is shared by N UEs, one common search space or multiple common search spaces correspond to one control resource set, and N is a positive integer greater than or equal to 2. One group common search space is used by one group including M UEs, one group common search space or multiple group common search spaces correspond to one control resource set, and M is a positive integer greater than or equal to 2. One dedicated search space is used by one UE, and one dedicated search space or multiple dedicated search spaces correspond to one control resource set.

在一种可能的实现方式中，当搜索空间为公共搜索空间时，DCI包括以下信息中至少一项：调度系统信息的DCI；调度寻呼信息的DCI；调度随机接入响应消息的DCI。In a possible implementation manner, when the search space is a common search space, the DCI includes at least one of the following information: DCI for scheduling system information; DCI for scheduling paging information; DCI for scheduling random access response messages.

在一种可能的实现方式中，当搜索空间为群组公共搜索空间时，DCI包括以下信息中至少一项：发送组功率控制命令字的DCI；发送组时隙结构信息的DCI；发送组资源打孔指示信息的DCI。In a possible implementation manner, when the search space is a group common search space, the DCI includes at least one item of the following information: DCI for sending group power control command words; DCI for sending group time slot structure information; sending group resources DCI for puncturing indication information.

在一种可能的实现方式中，当搜索空间为专属搜索空间时，DCI包括以下信息中至少一项：UE专属调度DCI；半持续调度DCI。In a possible implementation manner, when the search space is a dedicated search space, the DCI includes at least one item of the following information: UE-specific scheduling DCI; semi-persistent scheduling DCI.

在一种可能的实现方式中，不同UE的PDCCH的专属搜索空间对应的控制资源集的时频资源正交、重叠或部分重叠。In a possible implementation manner, the time-frequency resources of the control resource sets corresponding to the dedicated search spaces of the PDCCHs of different UEs are orthogonal, overlap, or partially overlap.

在一种可能的实现方式中，公共搜索空间发送的PDCCH与一个或一组同步信号具有准共址QCL关系，其中，一个或一组同步信号与配置公共搜索空间物理资源的物理广播信道PBCH之间存在对应关系。In a possible implementation manner, the PDCCH sent in the common search space has a quasi-co-located QCL relationship with one or a group of synchronization signals, wherein the one or a group of synchronization signals and the physical broadcast channel PBCH configuring the physical resources of the common search space are in a quasi-co-located QCL relationship. There is a correspondence between them.

在一种可能的实现方式中，一个或一组同步信号与配置公共搜索空间物理资源的PBCH之间存在对应关系，具体为一个或一组同步信号与配置公共搜索空间物理资源的PBCH的时间索引相同。In a possible implementation manner, there is a correspondence between one or a group of synchronization signals and the PBCH configured with the common search space physical resources, specifically the time index of the one or a group of synchronization signals and the PBCH configured with the common search space physical resources same.

在一种可能的实现方式中，群组公共搜索空间发送的PDCCH与一个或一组同步信号具有QCL关系，一个或一组同步信号由网络设备配置；群组公共搜索空间发送的PDCCH与一个或一组信道状态信息-参考信号CSI-RS具有QCL关系，一个或一组CSI-RS由网络设备配置。In a possible implementation manner, the PDCCH sent in the group common search space has a QCL relationship with one or a group of synchronization signals, and one or a group of synchronization signals is configured by the network device; the PDCCH sent in the group common search space is associated with one or a group of synchronization signals. A group of channel state information-reference signal CSI-RSs have a QCL relationship, and one or a group of CSI-RSs are configured by a network device.

在一种可能的实现方式中，PDCCH配置信息具体包括UE的搜索空间位置信息，UE的搜索空间位置与UE的标识不相关。其中，UE的搜索空间位置信息包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的控制信道元素CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。In a possible implementation manner, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is not related to the identity of the UE. The UE's search space location information includes at least one of the following: the starting position of the UE's search space, the CCE aggregation level of control channel elements in the UE's search space, and the number of PDCCH candidate resources in the UE's search space.

在一种可能的实现方式中，UE的搜索空间位置信息由协议预先配置；UE的搜索空间位置与UE的标识不相关；UE的搜索空间位置信息包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。In a possible implementation manner, the UE's search space location information is preconfigured by a protocol; the UE's search space location is not related to the UE's identity; the UE's search space location information includes at least one of the following: the start of the UE's search space The starting position, the CCE aggregation level of the UE's search space, and the number of PDCCH candidate resources in the UE's search space.

在一种可能的实现方式中，满足以下至少一项条件的UE的搜索空间位置相同：UE的搜索空间的起始位置相同；UE的搜索空间的CCE聚合等级相同；UE的搜索空间的PDCCH候选资源数目相同。In a possible implementation manner, the search space positions of the UEs satisfying at least one of the following conditions are the same: the starting positions of the search spaces of the UEs are the same; the CCE aggregation levels of the search spaces of the UEs are the same; the PDCCH candidates of the search spaces of the UEs are the same The number of resources is the same.

在一种可能的实现方式中，专属搜索空间发送的PDCCH与一个或一组同步信号具有QCL关系，一个或一组同步信号由网络设备配置；专属搜索空间发送的PDCCH与一个或一组CSI-RS具有QCL关系，一个或一组CSI-RS由网络设备配置。In a possible implementation manner, the PDCCH sent in the dedicated search space has a QCL relationship with one or a group of synchronization signals, and one or a group of synchronization signals is configured by a network device; the PDCCH sent in the dedicated search space is associated with one or a group of CSI- RSs have a QCL relationship, and one or a group of CSI-RSs are configured by network equipment.

在一种可能的实现方式中，PDCCH配置信息具体包括UE的搜索空间位置信息，UE的搜索空间位置与UE的标识相关；其中，UE的搜索空间位置信息包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。In a possible implementation, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is related to the identity of the UE; wherein the search space location information of the UE includes at least one of the following: the search space of the UE , the CCE aggregation level of the UE's search space, and the number of PDCCH candidate resources in the UE's search space.

在一种可能的实现方式中，UE的搜索空间位置信息由协议预先配置；述UE的搜索空间位置与UE的标识相关；UE的搜索空间位置信息包括以下至少一项：UE的搜索空间的起始位置，UE的搜索空间的CCE聚合等级，UE的搜索空间的PDCCH候选资源数目。In a possible implementation manner, the UE's search space location information is preconfigured by a protocol; the UE's search space location is related to the UE's identity; the UE's search space location information includes at least one of the following: the start of the UE's search space The starting position, the CCE aggregation level of the UE's search space, and the number of PDCCH candidate resources in the UE's search space.

在一种可能的实现方式中，UE在公共搜索空间内监听PDCCH所使用的参考信号包括宽带参考信号或者窄带参考信号，宽带参考信号为在公共搜索空间对应的控制资源集带宽上发送的参考信号，窄带参考信号为在公共搜索空间内的PDCCH所占用的CCE带宽内的参考信号。In a possible implementation manner, the reference signal used by the UE to monitor the PDCCH in the common search space includes a wideband reference signal or a narrowband reference signal, and the wideband reference signal is a reference signal sent on the bandwidth of the control resource set corresponding to the common search space , the narrowband reference signal is a reference signal within the CCE bandwidth occupied by the PDCCH in the common search space.

在一种可能的实现方式中，UE在群组公共搜索空间内监听PDCCH所使用的参考信号包括宽带参考信号或者窄带参考信号，宽带参考信号为在群组公共搜索空间对应的控制资源集带宽上发送的参考信号，窄带参考信号为在群组公共搜索空间内的PDCCH所占用的CCE带宽内的参考信号。In a possible implementation manner, the reference signal used by the UE to monitor the PDCCH in the group common search space includes a wideband reference signal or a narrowband reference signal, and the wideband reference signal is on the bandwidth of the control resource set corresponding to the group common search space For the transmitted reference signal, the narrowband reference signal is a reference signal within the CCE bandwidth occupied by the PDCCH in the group common search space.

在一种可能的实现方式中，UE在专属搜索空间内监听PDCCH所使用的参考信号包括窄带参考信号，窄带参考信号为在专属搜索空间内的PDCCH所占用的CCE带宽内的参考信号。In a possible implementation manner, the reference signal used by the UE to monitor the PDCCH in the dedicated search space includes a narrowband reference signal, and the narrowband reference signal is a reference signal within the CCE bandwidth occupied by the PDCCH in the dedicated search space.

当然，本发明实施例提供的UE 700包括但不限于上述所述的单元，例如UE700中还可以包括发送单元以及存储单元。Of course, theUE 700 provided in this embodiment of the present invention includes but is not limited to the above-mentioned units. For example, theUE 700 may further include a sending unit and a storage unit.

本发明实施例还提供一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，当UE 700的处理器执行该计算机程序时，该UE 700执行图4和图5中任一附图中的相关方法步骤。An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium. When the processor of theUE 700 executes the computer program, theUE 700 executes any one of FIG. 4 and FIG. 5 . Relevant method steps in the accompanying drawings.

本发明实施例还提供了一种计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行图4和图5中任一附图中的相关方法步骤。An embodiment of the present invention also provides a computer program product, which, when the computer program product runs on a computer, causes the computer to execute the relevant method steps in any one of FIG. 4 and FIG. 5 .

其中，本发明实施例提供的UE 700、计算机可读存储介质或者计算机程序产品均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。TheUE 700, the computer-readable storage medium, or the computer program product provided in the embodiments of the present invention are all used to execute the corresponding methods provided above. Therefore, for the beneficial effects that can be achieved, reference may be made to the corresponding methods provided above. The beneficial effects of the method are not repeated here.

通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

在本发明实施例所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided by the embodiments of the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be Incorporation may either be integrated into another device, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place, or may be distributed to multiple different places . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention are essentially or contribute to the prior art, or all or part of the technical solutions may be embodied in the form of software products, and the software products are stored in a storage medium Among them, several instructions are included to cause a device (which may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何在本发明揭露的技术范围内的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. . Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (53)

1. A method for configuring a search space of a Physical Downlink Control Channel (PDCCH) is applied to network equipment, and the method comprises the following steps:

sending PDCCH configuration information to User Equipment (UE), wherein the PDCCH configuration information is used for indicating at least one search space of a PDCCH of the UE, and the search space is any one of the following types:

a common search space;

a group common search space;

an exclusive search space;

the network equipment uses different types of downlink control information DCI sent by each search space;

when the search space is the group common search space, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is not related to an identifier of the UE;

when the search space is the dedicated search space, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is related to an identifier of the UE;

wherein the search space location information of the UE comprises at least one of: the starting position of the search space of the UE, the Control Channel Element (CCE) aggregation level of the search space of the UE, and the PDCCH candidate resource number of the search space of the UE.

2. The method of claim 1,

one common search space is used by N UEs together, one common search space or a plurality of common search spaces correspond to one control resource set, and N is a positive integer greater than or equal to 2;

one group common search space is used for one group containing M UEs, one group common search space or a plurality of group common search spaces correspond to one control resource set, and M is a positive integer greater than or equal to 2;

one dedicated search space is used by one UE, and one dedicated search space or a plurality of dedicated search spaces correspond to one control resource set.

3. The method of claim 1 or 2, wherein when the search space is the common search space, the DCI comprises at least one of:

DCI scheduling system information;

scheduling DCI of paging information;

and scheduling the DCI of the random access response message.

4. The method according to claim 1 or 2, wherein when the search space is the group common search space, the DCI comprises at least one of:

transmitting DCI of a group power control command word;

transmitting DCI of the group slot structure information;

and transmitting DCI of the group resource puncturing indication information.

5. The method according to claim 1 or 2, wherein when the search space is the dedicated search space, the DCI comprises at least one of:

UE-specific scheduling DCI;

semi-persistent scheduling DCI.

6. The method of claim 5, wherein the time-frequency resources of the control resource sets corresponding to the dedicated search spaces of the PDCCHs of different UEs are orthogonal, overlapping, or partially overlapping.

7. The method of claim 3, wherein the PDCCH transmitted in the common search space has a quasi-co-located QCL relationship with one or a set of synchronization signals, wherein there is a correspondence between the one or the set of synchronization signals and a Physical Broadcast Channel (PBCH) configuring the common search space physical resources.

8. The method of claim 7, wherein there is a correspondence between the one or the set of synchronization signals and a PBCH configuring the common search space physical resource, and particularly, the one or the set of synchronization signals and the PBCH configuring the common search space physical resource have a same time index.

9. The method of claim 4, wherein the PDCCH transmitted by the group common search space has a QCL relationship with one or a set of synchronization signals configured by the network device;

the PDCCH transmitted by the group common search space has a QCL relationship with one or a set of channel state information-reference signal (CSI-RS), which is configured by the network device.

10. The method of claim 1, wherein the search space positions of the UEs satisfying at least one of the following conditions are the same:

the starting positions of the search spaces of the UE are the same;

CCE aggregation levels of the search spaces of the UE are the same;

the number of PDCCH candidate resources of the search space of the UE is the same.

11. The method of claim 5, wherein the PDCCH transmitted by the dedicated search space has a QCL relationship with one or a set of synchronization signals configured by the network device;

the PDCCH transmitted by the dedicated search space has a QCL relationship with one or a set of CSI-RSs configured by the network device.

12. A monitoring method for a search space of a Physical Downlink Control Channel (PDCCH) is characterized by being applied to User Equipment (UE), and the method comprises the following steps:

receiving PDCCH configuration information sent by a network device, wherein the PDCCH configuration information is used for indicating at least one search space of a PDCCH of the UE, and the search space is any one of the following types:

a common search space;

a group common search space;

an exclusive search space; the network equipment uses different types of downlink control information DCI sent by each search space;

monitoring a search space of the PDCCH of the UE indicated by the PDCCH configuration information, and receiving downlink control information DCI corresponding to the search space of the PDCCH of the UE;

wherein, when the search space is the group common search space, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is not related to an identifier of the UE;

when the search space is the dedicated search space, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is related to an identifier of the UE;

wherein the search space location information of the UE comprises at least one of: the starting position of the search space of the UE, the Control Channel Element (CCE) aggregation level of the search space of the UE, and the PDCCH candidate resource number of the search space of the UE.

13. The method of claim 12,

one common search space is used by N UEs together, one common search space or a plurality of common search spaces correspond to one control resource set, and N is a positive integer greater than or equal to 2;

one group common search space is used for one group containing M UEs, one group common search space or a plurality of group common search spaces correspond to one control resource set, and M is a positive integer greater than or equal to 2;

one dedicated search space is used by one UE, and one dedicated search space or a plurality of dedicated search spaces correspond to one control resource set.

14. The method according to claim 12 or 13, wherein when the search space is the common search space, the receiving DCI corresponding to the search space of the PDCCH of the UE includes at least one of:

receiving DCI of scheduling system information;

receiving DCI of scheduling paging information;

receiving DCI scheduling a random access response message.

15. The method according to claim 12 or 13, wherein when the search space is the group common search space, the receiving DCI corresponding to the search space of the PDCCH of the UE comprises at least one of:

receiving DCI for transmitting a group power control command word;

receiving DCI for transmitting group time slot structure information;

receiving DCI for transmitting group resource puncturing indication information.

16. The method according to claim 12 or 13, wherein when the search space is the dedicated search space, the receiving DCI corresponding to the search space of the PDCCH of the UE comprises at least one of:

receiving UE exclusive scheduling DCI;

receiving a semi-persistent scheduling DCI.

17. The method of claim 16, wherein the time-frequency resources of the control resource sets corresponding to the dedicated search spaces of the PDCCHs of different UEs are orthogonal, overlapping, or partially overlapping.

18. The method of claim 14, wherein the PDCCH transmitted in the common search space has a quasi co-located QCL relationship with one or a set of synchronization signals, wherein there is a correspondence between the one or the set of synchronization signals and a physical broadcast channel, PBCH, configuring the common search space physical resources.

19. The method of claim 18, wherein a correspondence exists between the one or the set of synchronization signals and the PBCH configuring the common search space physical resource, and particularly, the one or the set of synchronization signals and the PBCH configuring the common search space physical resource have a same time index.

20. The method of claim 15, wherein the PDCCH sent in the group common search space has a QCL relationship with one or a set of synchronization signals configured by the network device;

the PDCCH transmitted by the group common search space has a QCL relationship with one or a set of channel state information-reference signal (CSI-RS), which is configured by the network device.

21. The method of claim 12, wherein the search space positions of the UEs satisfying at least one of the following conditions are the same:

the starting positions of the search spaces of the UE are the same;

CCE aggregation levels of the search spaces of the UE are the same;

the number of PDCCH candidate resources of the search space of the UE is the same.

22. The method of claim 16, wherein the PDCCH sent in the dedicated search space has a QCL relationship with one or a set of synchronization signals configured by the network device;

the PDCCH transmitted by the dedicated search space has a QCL relationship with one or a set of CSI-RSs configured by the network device.

23. The method of claim 14, wherein the reference signal used by the UE to monitor the PDCCH in the common search space comprises a wideband reference signal or a narrowband reference signal, the wideband reference signal is a reference signal transmitted on a control resource set bandwidth corresponding to the common search space, and the narrowband reference signal is a reference signal within a CCE bandwidth occupied by the PDCCH in the common search space.

24. The method of claim 15, wherein the reference signal used by the UE to monitor the PDCCH in the group common search space comprises a wideband reference signal or a narrowband reference signal, the wideband reference signal is a reference signal transmitted on a control resource set bandwidth corresponding to the group common search space, and the narrowband reference signal is a reference signal in a CCE bandwidth occupied by the PDCCH in the group common search space.

25. The method of claim 16, wherein the reference signals used by the UE to monitor the PDCCH in the dedicated search space comprise narrowband reference signals within a CCE bandwidth occupied by the PDCCH in the dedicated search space.

26. A network device, characterized in that the network device comprises:

a sending unit, configured to send PDCCH configuration information of a physical downlink control channel to a user equipment UE, where the PDCCH configuration information is used to indicate at least one search space of a PDCCH of the UE, and the search space is any one of the following types:

a common search space;

a group common search space;

an exclusive search space;

the sending unit sends the downlink control information DCI of different types in each search space;

when the search space is the group common search space, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is not related to an identifier of the UE;

when the search space is the dedicated search space, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is related to an identifier of the UE;

wherein the search space location information of the UE comprises at least one of: the starting position of the search space of the UE, the Control Channel Element (CCE) aggregation level of the search space of the UE, and the PDCCH candidate resource number of the search space of the UE.

27. The network device of claim 26,

one common search space is used by N UEs together, one common search space or a plurality of common search spaces correspond to one control resource set, and N is a positive integer greater than or equal to 2;

one group common search space is used for one group containing M UEs, one group common search space or a plurality of group common search spaces correspond to one control resource set, and M is a positive integer greater than or equal to 2;

one dedicated search space is used by one UE, and one dedicated search space or a plurality of dedicated search spaces correspond to one control resource set.

28. The network device of claim 26 or 27, wherein when the search space is the common search space, the DCI comprises at least one of:

DCI scheduling system information;

scheduling DCI of paging information;

and scheduling the DCI of the random access response message.

29. The network device of claim 26 or 27, wherein when the search space is the group common search space, the DCI comprises at least one of:

transmitting DCI of a group power control command word;

transmitting DCI of the group slot structure information;

and transmitting DCI of the group resource puncturing indication information.

30. The network device of claim 26 or 27, wherein when the search space is the dedicated search space, the DCI comprises at least one of:

UE-specific scheduling DCI;

semi-persistent scheduling DCI.

31. The network device of claim 30, wherein time-frequency resources of control resource sets corresponding to dedicated search spaces of PDCCHs of different UEs are orthogonal, overlapping, or partially overlapping.

32. The network device of claim 28, wherein the PDCCH transmitted in the common search space has a quasi co-located QCL relationship with one or a set of synchronization signals, wherein there is a correspondence between the one or the set of synchronization signals and a physical broadcast channel, PBCH, configuring the common search space physical resources.

33. The network device of claim 32, wherein a correspondence exists between the one or the set of synchronization signals and a PBCH configuring the common search space physical resource, and particularly, the one or the set of synchronization signals and the PBCH configuring the common search space physical resource have a same time index.

34. The network device of claim 29, wherein the PDCCH sent in the group common search space has a QCL relationship with one or a set of synchronization signals configured by the network device;

the PDCCH transmitted by the group common search space has a QCL relationship with one or a set of channel state information-reference signal (CSI-RS), which is configured by the network device.

35. The network device of claim 26, wherein the search space locations of the UEs satisfying at least one of the following conditions are the same:

the starting positions of the search spaces of the UE are the same;

CCE aggregation levels of the search spaces of the UE are the same;

the number of PDCCH candidate resources of the search space of the UE is the same.

36. The network device of claim 30, wherein the PDCCH sent in the dedicated search space has a QCL relationship with one or a set of synchronization signals configured by the network device;

the PDCCH transmitted by the dedicated search space has a QCL relationship with one or a set of CSI-RSs configured by the network device.

37. A User Equipment (UE), the UE comprising:

a receiving unit, configured to receive PDCCH configuration information of a physical downlink control channel sent by a network device, where the PDCCH configuration information is used to indicate at least one search space of a PDCCH of the UE, and the search space is any one of the following types:

a common search space;

a group common search space;

an exclusive search space; the network equipment uses different types of downlink control information DCI sent by each search space;

the receiving unit is further configured to: monitoring a search space of the PDCCH of the UE indicated by the PDCCH configuration information, and receiving downlink control information DCI corresponding to the search space of the PDCCH of the UE;

wherein, when the search space is the group common search space, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is not related to an identifier of the UE;

when the search space is the dedicated search space, the PDCCH configuration information specifically includes search space location information of the UE, and the search space location of the UE is related to an identifier of the UE;

wherein the search space location information of the UE comprises at least one of: the starting position of the search space of the UE, the Control Channel Element (CCE) aggregation level of the search space of the UE, and the PDCCH candidate resource number of the search space of the UE.

38. The UE of claim 37,

one common search space is used by N UEs together, one common search space or a plurality of common search spaces correspond to one control resource set, and N is a positive integer greater than or equal to 2;

one group common search space is used by a group of M UEs, and one group common search space or a plurality of group common search spaces corresponds to one control resource set; m is a positive integer greater than or equal to 2;

one dedicated search space is used by one UE, and one dedicated search space or a plurality of dedicated search spaces correspond to one control resource set.

39. The UE according to claim 37 or 38, wherein when the search space is the common search space, the receiving unit is specifically configured to at least one of:

receiving DCI of scheduling system information;

receiving DCI of scheduling paging information;

receiving DCI scheduling a random access response message.

40. The UE according to claim 37 or 38, wherein when the search space is the group common search space, the receiving unit is specifically configured to at least one of:

receiving DCI for transmitting a group power control command word;

receiving DCI for transmitting group time slot structure information;

receiving DCI for transmitting group resource puncturing indication information.

41. The UE according to claim 37 or 38, wherein when the search space is the dedicated search space, the receiving unit is specifically configured to at least one of:

receiving UE exclusive scheduling DCI;

receiving a semi-persistent scheduling DCI.

42. The UE of claim 41, wherein time-frequency resources of control resource sets corresponding to dedicated search spaces of PDCCHs of different UEs are orthogonal, overlapping, or partially overlapping.

43. The UE of claim 39, wherein the PDCCH transmitted in the common search space has a quasi-co-located QCL relationship with one or a set of synchronization signals, wherein there is a correspondence between the one or the set of synchronization signals and a Physical Broadcast Channel (PBCH) configuring the common search space physical resources.

44. The UE of claim 43, wherein a correspondence exists between the one or the set of synchronization signals and a PBCH configuring the common search space physical resource, and wherein the one or the set of synchronization signals and the PBCH configuring the common search space physical resource have a same time index.

45. The UE of claim 40, wherein the PDCCH transmitted by the group common search space has a QCL relationship with one or a set of synchronization signals configured by the network device;

the PDCCH transmitted by the group common search space has a QCL relationship with one or a set of channel state information-reference signal (CSI-RS), which is configured by the network device.

46. The UE of claim 37, wherein the UE satisfying at least one of the following conditions has the same search space position:

the starting positions of the search spaces of the UE are the same;

CCE aggregation levels of the search spaces of the UE are the same;

the number of PDCCH candidate resources of the search space of the UE is the same.

47. The UE of claim 41, wherein the PDCCH transmitted by the dedicated search space has a QCL relationship with one or a set of synchronization signals configured by the network device;

the PDCCH transmitted by the dedicated search space has a QCL relationship with one or a set of CSI-RSs configured by the network device.

48. The UE of claim 39, wherein the reference signal used by the UE to monitor the PDCCH in the common search space comprises a wideband reference signal or a narrowband reference signal, the wideband reference signal is a reference signal transmitted on a control resource set bandwidth corresponding to the common search space, and the narrowband reference signal is a reference signal within a CCE bandwidth occupied by the PDCCH in the common search space.

49. The UE of claim 40, wherein the reference signal used by the UE to monitor the PDCCH in the group common search space comprises a wideband reference signal or a narrowband reference signal, the wideband reference signal is a reference signal transmitted on a control resource set bandwidth corresponding to the group common search space, and the narrowband reference signal is a reference signal in a CCE bandwidth occupied by the PDCCH in the group common search space.

50. The UE of claim 41, wherein the reference signals used by the UE to monitor the PDCCH in the dedicated search space comprise narrowband reference signals within a CCE bandwidth occupied by the PDCCH in the dedicated search space.

51. A network device, characterized in that the network device comprises: processor, memory and computer program stored on the memory and executable on the processor, which when executed by the processor implements the method of configuring the search space of a physical downlink control channel, PDCCH, according to any of claims 1-11.

52. A User Equipment (UE), the UE comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing a method for listening to a search space of a physical downlink control channel, PDCCH, according to any of claims 12-25.

53. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the method for configuring the search space of a physical downlink control channel, PDCCH, according to any one of claims 1-11, or which, when being executed by a processor, implements the method for monitoring the search space of a physical downlink control channel, PDCCH, according to any one of claims 12-25.

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